Method and apparatus for enhanced T1 NMR measurements using repe

Details Method and apparatus for enhanced T1 NMR measurements using repe Method and apparatus for enhanced T1 NMR measurements using repe

1983-07-21

1986-08-05

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

G01N 2408, G01R 3320

Patent

active

046045791

ABSTRACT:
An analytic closed solution for the spin-lattice relaxation time T1 is provided in terms of the repetition interval time TR and the differing NMR signal response intensities I.sub.1 and I.sub.2 obtained when using different repetition intervals TR.sub.1 and TR.sub.2 which are related to one another by integer multipliers. The result is a method and apparatus which directly and non-iteratively generate a spin-lattice relaxation time signal value T1 for each voxel within a selected region of an object under test so as to quickly, economically and accurately produce a T1 image of nutated nuclei within the region.

REFERENCES:
patent: 4297637 (1981-10-01), Crooks et al.
patent: 4318043 (1982-03-01), Crooks et al.
patent: 4471305 (1984-09-01), Crooks et al.
Crooks et al, "Nuclear Magnetic Resonance Whole-Body Imager Operating at 3.5 KGauss", Radiology, vol. 143, Apr., 1982.
Wehrli et al, "The Dependence of Nuclear Magnetic Resonance (NMR) Image Contrast on Intrinsic and Operator-Selectable Parameters", presented at the Meeting of SPIE, Medicine XII, vol. 419, Apr., 1983.
Mansfield et al., "Planar Spin Imaging by NMR", Journal of Magnetic Resonance, vol. 27, No. 1, Jul., 1977.

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